Re: [Therion] Metapost for sump/syphon hazard symbol

[Benedikt Hallinger]

Hello,just a random comment from me;but wouldn‘t it be important that map readers clearly see „danger“?I am using a sinple warning sign everywhere and clarify using text.So even non-cavers or people not familiar with specific map symbols are clearly pointed at „watch out!“.The droplet proposed here, for example would not indicate to me that there is imminent danger. I would probably not even look it up in the legend because my brain thinks „not relevant - looks like something special to hydrologists“.Am 13.04.2024 um 09:15 schrieb Martin Sluka via Therion :It is very simple conversion which don’t use Metapost’s options. Odesláno z iPhonu13. 4. 2024 v 8:49, Henry Bennett :if you could get the image into postscript then, you could use http://www.pstoedit.net/ to convert to Metapost.You should be able to get EPS by printing to a Postscript printer and then choosing print to file.HenryOn Sat, Apr 13, 2024 at 4:20 AM Bruce Mutton  wrote:HelloI’m looking for a Therion map symbol to emphasize the hazard posed by a localised low roof in passages (typically 2m to 5m in diameter) that are usually inaccessible due to water, but in dry conditions appear innocuous to the unwary.  Currently I’m using an empty placeholder symbol, point u:sumphazard, but want to upgrade! I’ve been using the SBE point danger symbol to identify hazards such as zones of active passage collapse.One approach for sumping hazard would be to use the same symbol, and change the colour to blue, but I would like the distinction to be available for black and white outputs as well as colour outputs. Since I’m not very good at metapost, I’m looking to see if anyone has anything they’d be willing to share, or perhaps write! What I have in mind is something like an exclamation mark over top of some water squiggles.  Maybe like one of these? The links behind the images below might have some useful elements.  Thanks in advance.Bruce___
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Re: [Therion] Metapost for sump/syphon hazard symbol

[Martin Sluka via Therion]

It is very simple conversion which don’t use Metapost’s options. Odesláno z iPhonu13. 4. 2024 v 8:49, Henry Bennett :if you could get the image into postscript then, you could use http://www.pstoedit.net/ to convert to Metapost.You should be able to get EPS by printing to a Postscript printer and then choosing print to file.HenryOn Sat, Apr 13, 2024 at 4:20 AM Bruce Mutton  wrote:HelloI’m looking for a Therion map symbol to emphasize the hazard posed by a localised low roof in passages (typically 2m to 5m in diameter) that are usually inaccessible due to water, but in dry conditions appear innocuous to the unwary.  Currently I’m using an empty placeholder symbol, point u:sumphazard, but want to upgrade! I’ve been using the SBE point danger symbol to identify hazards such as zones of active passage collapse.One approach for sumping hazard would be to use the same symbol, and change the colour to blue, but I would like the distinction to be available for black and white outputs as well as colour outputs. Since I’m not very good at metapost, I’m looking to see if anyone has anything they’d be willing to share, or perhaps write! What I have in mind is something like an exclamation mark over top of some water squiggles.  Maybe like one of these? The links behind the images below might have some useful elements.  Thanks in advance.Bruce___
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Re: [Therion] Metapost for sump/syphon hazard symbol

[Henry Bennett]

if you could get the image into postscript then, you could use
http://www.pstoedit.net/ to convert to Metapost.

You should be able to get EPS by printing to a Postscript printer and then
choosing print to file.

Henry

On Sat, Apr 13, 2024 at 4:20 AM Bruce Mutton  wrote:

> Hello
>
> I’m looking for a Therion map symbol to emphasize the hazard posed by a
> localised low roof in passages (typically 2m to 5m in diameter) that are
> usually inaccessible due to water, but in dry conditions appear innocuous
> to the unwary.  Currently I’m using an empty placeholder symbol, point
> u:sumphazard, but want to upgrade!
>
>
>
> I’ve been using the SBE point danger symbol to identify hazards such as
> zones of active passage collapse.
>
> One approach for sumping hazard would be to use the same symbol, and
> change the colour to blue, but I would like the distinction to be available
> for black and white outputs as well as colour outputs.
>
>
>
> Since I’m not very good at metapost, I’m looking to see if anyone has
> anything they’d be willing to share, or perhaps write!
>
>
>
> What I have in mind is something like an exclamation mark over top of some
> water squiggles.  Maybe like one of these?
>
>
>
> The links behind the images below might have some useful elements.
>
>
>
>
> 
> 
>
> Thanks in advance.
>
> Bruce
> ___
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion
>
___
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[Therion] Metapost for sump/syphon hazard symbol

[Bruce Mutton]

Hello

I'm looking for a Therion map symbol to emphasize the hazard posed by a
localised low roof in passages (typically 2m to 5m in diameter) that are
usually inaccessible due to water, but in dry conditions appear innocuous to
the unwary.  Currently I'm using an empty placeholder symbol, point
u:sumphazard, but want to upgrade!

 

I've been using the SBE point danger symbol to identify hazards such as
zones of active passage collapse.



One approach for sumping hazard would be to use the same symbol, and change
the colour to blue, but I would like the distinction to be available for
black and white outputs as well as colour outputs.

 

Since I'm not very good at metapost, I'm looking to see if anyone has
anything they'd be willing to share, or perhaps write!

 

What I have in mind is something like an exclamation mark over top of some
water squiggles.  Maybe like one of these?



 

The links behind the images below might have some useful elements.

 

 

 

Thanks in advance.

Bruce

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